自し然ぜん気き胸きょう

noun

spontaneous pneumothorax; collapsed lung

Medical term for a lung collapse occurring without an obvious external cause. In everyday contexts, 気胸 alone is often used.

• 自し然ぜん気き胸きょうは、特とくに背せの高たかい若わかい男だん性せいに起おこりやすいと言いわれている。

  Spontaneous pneumothorax is said to occur especially often in tall young men.

• 彼かれは自し然ぜん気き胸きょうで入にゅう院いんした。

  He was hospitalized for a spontaneous pneumothorax.